dsk-dev kubespray 이동
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ByeonJungHun
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---
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metrics_server_container_port: 4443
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metrics_server_kubelet_insecure_tls: true
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metrics_server_kubelet_preferred_address_types: "InternalIP,ExternalIP,Hostname"
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metrics_server_metric_resolution: 15s
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metrics_server_limits_cpu: 100m
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metrics_server_limits_memory: 200Mi
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metrics_server_requests_cpu: 100m
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metrics_server_requests_memory: 200Mi
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metrics_server_host_network: false
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metrics_server_replicas: 1
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@@ -0,0 +1,57 @@
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---
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# If all masters have node role, there are no tainted master and toleration should not be specified.
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- name: Check all masters are node or not
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set_fact:
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masters_are_not_tainted: "{{ groups['kube_node'] | intersect(groups['kube_control_plane']) == groups['kube_control_plane'] }}"
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- name: Metrics Server | Delete addon dir
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file:
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path: "{{ kube_config_dir }}/addons/metrics_server"
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state: absent
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when:
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- inventory_hostname == groups['kube_control_plane'][0]
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tags:
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- upgrade
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- name: Metrics Server | Create addon dir
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file:
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path: "{{ kube_config_dir }}/addons/metrics_server"
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state: directory
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owner: root
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group: root
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mode: 0755
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when:
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- inventory_hostname == groups['kube_control_plane'][0]
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- name: Metrics Server | Templates list
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set_fact:
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metrics_server_templates:
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- { name: auth-delegator, file: auth-delegator.yaml, type: clusterrolebinding }
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- { name: auth-reader, file: auth-reader.yaml, type: rolebinding }
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- { name: metrics-server-sa, file: metrics-server-sa.yaml, type: sa }
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- { name: metrics-server-deployment, file: metrics-server-deployment.yaml, type: deploy }
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- { name: metrics-server-service, file: metrics-server-service.yaml, type: service }
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- { name: metrics-apiservice, file: metrics-apiservice.yaml, type: service }
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- { name: resource-reader-clusterrolebinding, file: resource-reader-clusterrolebinding.yaml, type: clusterrolebinding }
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- { name: resource-reader, file: resource-reader.yaml, type: clusterrole }
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- name: Metrics Server | Create manifests
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template:
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src: "{{ item.file }}.j2"
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dest: "{{ kube_config_dir }}/addons/metrics_server/{{ item.file }}"
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mode: 0644
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with_items: "{{ metrics_server_templates }}"
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register: metrics_server_manifests
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when:
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- inventory_hostname == groups['kube_control_plane'][0]
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- name: Metrics Server | Apply manifests
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kube:
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name: "{{ item.item.name }}"
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kubectl: "{{ bin_dir }}/kubectl"
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resource: "{{ item.item.type }}"
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filename: "{{ kube_config_dir }}/addons/metrics_server/{{ item.item.file }}"
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state: "latest"
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with_items: "{{ metrics_server_manifests.results }}"
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when:
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- inventory_hostname == groups['kube_control_plane'][0]
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@@ -0,0 +1,14 @@
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: metrics-server:system:auth-delegator
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labels:
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addonmanager.kubernetes.io/mode: Reconcile
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: system:auth-delegator
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subjects:
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- kind: ServiceAccount
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name: metrics-server
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namespace: kube-system
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@@ -0,0 +1,15 @@
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apiVersion: rbac.authorization.k8s.io/v1
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kind: RoleBinding
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metadata:
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name: metrics-server-auth-reader
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namespace: kube-system
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labels:
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addonmanager.kubernetes.io/mode: Reconcile
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: Role
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name: extension-apiserver-authentication-reader
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subjects:
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- kind: ServiceAccount
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name: metrics-server
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namespace: kube-system
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@@ -0,0 +1,15 @@
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apiVersion: apiregistration.k8s.io/v1
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kind: APIService
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metadata:
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name: v1beta1.metrics.k8s.io
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labels:
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addonmanager.kubernetes.io/mode: Reconcile
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spec:
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service:
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name: metrics-server
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namespace: kube-system
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group: metrics.k8s.io
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version: v1beta1
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insecureSkipTLSVerify: {{ metrics_server_kubelet_insecure_tls }}
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groupPriorityMinimum: 100
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versionPriority: 100
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@@ -0,0 +1,107 @@
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: metrics-server
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namespace: kube-system
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labels:
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app.kubernetes.io/name: metrics-server
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addonmanager.kubernetes.io/mode: Reconcile
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version: {{ metrics_server_version }}
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spec:
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replicas: {{ metrics_server_replicas }}
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selector:
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matchLabels:
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app.kubernetes.io/name: metrics-server
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version: {{ metrics_server_version }}
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strategy:
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rollingUpdate:
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maxUnavailable: 0
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template:
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metadata:
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name: metrics-server
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labels:
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app.kubernetes.io/name: metrics-server
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version: {{ metrics_server_version }}
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annotations:
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seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'
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spec:
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priorityClassName: system-cluster-critical
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serviceAccountName: metrics-server
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hostNetwork: {{ metrics_server_host_network | default(false) }}
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containers:
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- name: metrics-server
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image: {{ metrics_server_image_repo }}:{{ metrics_server_image_tag }}
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imagePullPolicy: {{ k8s_image_pull_policy }}
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args:
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- --logtostderr
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- --cert-dir=/tmp
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- --secure-port={{ metrics_server_container_port }}
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{% if metrics_server_kubelet_preferred_address_types %}
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- --kubelet-preferred-address-types={{ metrics_server_kubelet_preferred_address_types }}
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{% endif %}
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- --kubelet-use-node-status-port
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{% if metrics_server_kubelet_insecure_tls %}
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- --kubelet-insecure-tls
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{% endif %}
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- --metric-resolution={{ metrics_server_metric_resolution }}
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ports:
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- containerPort: {{ metrics_server_container_port }}
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name: https
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protocol: TCP
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volumeMounts:
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- name: tmp
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mountPath: /tmp
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livenessProbe:
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httpGet:
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path: /livez
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port: https
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scheme: HTTPS
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periodSeconds: 10
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failureThreshold: 3
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initialDelaySeconds: 40
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readinessProbe:
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httpGet:
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path: /readyz
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port: https
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scheme: HTTPS
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periodSeconds: 10
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failureThreshold: 3
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initialDelaySeconds: 40
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securityContext:
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readOnlyRootFilesystem: true
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runAsGroup: 10001
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runAsNonRoot: true
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runAsUser: 10001
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allowPrivilegeEscalation: false
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resources:
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limits:
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cpu: {{ metrics_server_limits_cpu }}
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memory: {{ metrics_server_limits_memory }}
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requests:
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cpu: {{ metrics_server_requests_cpu }}
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memory: {{ metrics_server_requests_memory }}
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volumes:
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- name: tmp
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emptyDir: {}
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{% if not masters_are_not_tainted %}
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tolerations:
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- key: node-role.kubernetes.io/master
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effect: NoSchedule
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- key: node-role.kubernetes.io/control-plane
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effect: NoSchedule
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{% endif %}
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affinity:
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podAntiAffinity:
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preferredDuringSchedulingIgnoredDuringExecution:
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- weight: 100
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podAffinityTerm:
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labelSelector:
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matchExpressions:
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- key: app.kubernetes.io/name
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operator: In
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values:
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- metrics-server
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topologyKey: kubernetes.io/hostname
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namespaces:
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- kube-system
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@@ -0,0 +1,8 @@
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: metrics-server
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namespace: kube-system
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labels:
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addonmanager.kubernetes.io/mode: Reconcile
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@@ -0,0 +1,17 @@
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apiVersion: v1
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kind: Service
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metadata:
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name: metrics-server
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namespace: kube-system
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labels:
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addonmanager.kubernetes.io/mode: Reconcile
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app.kubernetes.io/name: "metrics-server"
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spec:
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type: ClusterIP
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selector:
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app.kubernetes.io/name: metrics-server
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ports:
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- name: https
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port: 443
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protocol: TCP
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targetPort: https
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@@ -0,0 +1,15 @@
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: system:metrics-server
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labels:
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addonmanager.kubernetes.io/mode: Reconcile
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: system:metrics-server
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subjects:
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- kind: ServiceAccount
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name: metrics-server
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namespace: kube-system
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@@ -0,0 +1,17 @@
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: system:metrics-server
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labels:
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addonmanager.kubernetes.io/mode: Reconcile
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rules:
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- apiGroups:
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- ""
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resources:
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- pods
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- nodes
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- nodes/metrics
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verbs:
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- get
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- list
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- watch
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